Q1. What is the role of EHV in AC and DC power transmission and other field of s

Q1. What is the
role of EHV in AC and DC power transmission and other field of science?Q2.
Describe clearly the distinction of the
breakdown strength and breakdown voltage in a certain dielectric material
testing.
(Use the necessary
demonstrative diagrams and formulations.)
Q3.
What is the effect of surge
voltage in power system due to lightning stroke?And what are the mainprotection methods used in different areas
of application?Q4.
What are the typical importance/applications
of thehigh/extra
voltage system?Q5.
Explain the distinction between the following Technical
terms:a.
Internal Voltage
Surge and External Voltage Surgeb.
Step Voltage anduniform Potential Distributionc.Voltage
stress and rupturing strengthd.
Solid
dielectrics andGaseous dielectricse.Bundle Spacing and Bundle
RadiusQ6.
Formulate and elaborate the field
strength of the following coaxial cylinder(a) and coaxial sphere(b).Q7.Estimate/compare thebreakdown values in some typical/common gases
solids and liquids..Q8.Insulation coordination based upon switching impulse levels. Why?Q9.Which gas insulation is employed in extra
high voltage application worldwide? Why?
Q10. Describe with
neat sketches the mechanism of lightning stroke contacting a tower.